Sandpapering-machine.



PATENTED JUNE 30, 1908.

J. L. PERRY.

SANDPAPERING MACHINE.

.APPLICATION FILED SEPT. Z4, 1906.

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PATENTED JUNE 30, 1908.

J. L. PERRY. SANDPAPERING MACHINE.

APPLICATION FILED SEPT. 24, 1906.

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PATENTED JUNE 30, 1908.

J. L. PERRY.

SANDPAPERING MACHINE.

APPLICATION FILED SEPT.24,190U

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JAMES L. PERRY, OF SMITHVLLE, NEW JERSEY, ASSIGNOR TO ll. B. SMQTH MACHINE COM- PANY, QF SMITEVILLE, .NEW JERSEY, A CGRPORATIO'N OF NEW JERSEY.

SANDPAPERING-MACHINE No. 891,959. Specification oi Letters Patent. Patented June 30, 1908.

Application filed September 24, 19GB. Serial No. 333,659.

To ail wiomimwy concern: 11 the inain driving shai't rotatingl in 55 rBe it known that l, .lianes L. Pensi, n bearings in the machine freine.

eitir/.en the United Stai' s, residing et 12 `is a sprocket wheel on the vini/iin,driving Smithville, e. ty olf Burlington, and State shait.

of New Jersey, have invented a new and usel5 is a. secondary(driving shalt turning in fui Improvement in Sandpnpering-Mechines, bcarin on the iniiclnne i'raino. to of which thelli'illowing; siull, clear, and ex.- 1e' a sprocket wheel on the secondary act description, reference being lied to the driving shelf. accompanying drawings, which "forni n part 13 is ii sprmzkot chain connecting sprocket oli this specification. \fif'heels l2 :nid il.

My invention einhoilies improvements on 232 is the slnilt 'lor driving the endless cnr e5 the sandy-sperme; i'nael'iine set forth in Letrier, rotating in bearings on the table '20 near ters Patent No. 657,357, dated September Ll, one end tliereo'l".

1900, and hz. s for its object to proviiile new 150, 21() irre e-:nfinsi-.n'i links 4 ivoted reand im )reveil inea lor driving the shalt of spectively to shirlts 15 :ind 21 and) novidiiig the enriess earner rein the driving shalt, to bearings ioi an inlerinediate shelt 1S. A 70 improve the construction oi" the endless cere pinion 16 on shaft 15 engages a gein' 1T von iier, to provide ineens to .lubricate the boershalt 1.8, sind e pinion .i9 on shalt 18 engages ings between the links end lugs oi' the endless n gear 21 on sliiilt 122.

20 carrier end also the ways over which the up- By thc described connections the driving per rescliof the carrier travels, to provide shalt drives the endless carrierslnilit nt e 7o new and improved n'ieans for independently inuch 'reduced speed, and provision is made adjusting the four corners of the table, to for :i vertical :idjustinent of the carrier table provide means for .removing dust from the without affecting the driving ciinnections be working fece of the endless carrier, :nid to tween the niain shaft and the driving shaft provide new and useful ineans by which the for the endless carrier. l 8O precise, adjustment of the sanding drunis to The shaft 22 liestho two sprocketwheels 23. regulate the depth. of the cut may be indi- A slni'ft 25 turns in bearings near the other cated so that the adjustment inay Abe reguend oi" the table 2U :1nd has the two sprocket lated to e nicety bclore the work is fed into wheels 24. The endless carrier 3() extends the machine. about the two p e'irs of sprocket wheels 2l. 85

In the drawings: Figures 1 and 2 nre side andel. elevations oi" the ninchine lookingr respec- The endless carrier 30 comprises links 3l,

tively from opposite sides thereof, the nicchlags on. The'legs extend from one sido to anisin for raising and loweringr one corner of the other of the carrier, end each two adjatlie txable being shown in Fig i. Fig. 1.A is cent lags are connected by ineens of' two 90 en inverted plan view, partly broken away, pairs of links engaging respectively .the of one o1 the corner 'fidjustingr devices. Fig. sprocket wheels 223 and .54 :it opposite sides 3 i's a detail side eievatioii of the ineelienisin of the table. The legs travel over ways 26 40 for raising rind .lowering the druni and the on the table. Y V

indica-tor attachment therefor. Fig. 4 is :t The connections between the legsA and 95 transverse sectional view of the sinne. Fig. links of the ceriierare as follows:` Secured to l5 is e; detail longitudinal sectional view oi" the underside of cach liw are two lugs 33 (see one oi the legs, on one oi the .lugs ol the car- Figs. 5 and 7). Each Tug is rovided with 45.1ier. Fig. 6 is e det-eil view of one ol the two transverselyoxtendingori ices through links. Fie 6 is a detail view of one of the which extend )ins 369. The pins 369 ex- 1.00 pins and iilustiating its inode of' engagement tend respectively into vorifices 39 inthe correwith o positie links. Fig. 7 is e detail longispending; ends ol two )airs of links, one pair tudina sectional View ot the mechanism for ol links Ybeing siinilerhr Iconnected with the lubricating the ways for the mirrier. Fig. 8 adjacent lng of one of the next adjacent legs,

is a plan. view of thx same. end the other parir of links being similarly l() is the iinicliinc lrann, 2l) the veitioellyeoi'iiieotcd with the adjacent lng'otl the other adjustable oei-fier supporting table, f() the next adjacent hie. The-orifices in the lugs endless carrier and 6() the sanding drums. ol' the lags are circuler to permit the pins to -adapted to contain oil.

sander, tend' to clog withdust.

'non-circular, and such a link is shown in Fig. 6.

The bearings between the pins and the `lugs of the lags may be lubricated by the means shown in l? ig. 5, comprising a longitudinally extending recess 87 in the lug in tersecting the edges'of the holes for the pins. Thevrecess A37 may contain any suitable lubricating material.

To lubricate the ways for the lags, the following means are provided (seelfiffs. 7 and 8.) Connecting the side-walls of the table, and beneath the Ways, is the box 40. 'Su ported from bolts '41, depending from brac ets 42 on the table, is a trough 43 extending substantially from end to end of the box and Projecting upwardly from the trough are standards 44 1n which turns shaft 45 projecting beyond the ends of the table andhaving squared ends adapted to receive a handle 460. the shaft 45 are brushes 46 extending into orifices 47.in the ways 26. By 'turning the shaft 45'while the sander is in operation, the brushes'46 apply oil to the inner faces ofthe lags, which distribute the oil along the working faces of the ways.

The lags of the carrier are providedv on their outer surfaces, as usual, with -rubber cushions 38, which, in the operation ofthe To clean the diist from the rubber cushions, the following arrangement is provided (see F ig.A 1). Secured to the shaft 15 is a gear 51 engaging a gear 52 on the shaft 53. Secured tothe shaft 53 is a gear 54 engaging a gear 55gon- Secured to shaft 56 i's the.. brush 57. As the carriers travel, the brush.

the shaft 56.

56 turns and lcleans thoroughly the rubber cushions and thespaces between theA cushions. The shaft 56turns in bee rings on the table and the' shaft 53 is journaled in links 151, 530 attached respectively to shafts 15 land 53.

The following means are provided for vertically moving the tables so' as to provide for operating upon different thicknesses of material (see Figs. 1 and 2.) 80 are four upright screw threaded shafts at the four corners of the table.4 Each' haft has on its lower end the bevel gear 81. Each threaded shaft engages, near its upper end, a nut 82 which telescopes within a lbox 83 through which' the upper end of shaft 80 loosely extends.

nclutch mechanism.

Secured to being a pair for each drum.

. shaft 65.

` the frame of the machine.

Confined between the nut and box is a spring S4. rflic box S4 has a Harige 85 which is bolted to the table. By turning the shafts SO in one direction, the nuts 82 are raised against their corresponding" springs 84, which, acting upon their coi-responding boxes S3, elevate Idie table'. By turning the shafts 80 in the opposite direction the nuts S2 are lowered and the table sinks to the extent permitted by the springs 84. Appropriate means are provided to enable the shafts S0 to be operated in unison, either by hand, or from the main driving shaft, with which they are connected by suitable The mechanism for ope'rating the shafts 80 in unison need not, however, be described, as such mechanism is old and well known and is fully set forth in my first patent hereinbefore referred to.

To provide for leveling the table, that is,` adjusting each of the four corners independently, the following consi ruetion is provided.

On the nut 82 is the annular flange 86 having orifices 36() through which extend loosely bolts 87 engaging screw threaded holes 880 in an annular-flange 8S on the box 83. By screwing down the bolts 8T, the spring 84 raises box 83 and the corresponding corner of the table. By screwing up the bolts 87, the cori responding corner of the table d-rops to the extent permitted by the spring.

To secure a finer adjustment, the threaded holes in the box and the holes in the -nut are of a different number, the arrangement being such that the number of one series of holes (say the threaded holes) is a multiple of the other series of holes. Thev screws may be withdrawn, the nut turned on `the threaded shaft to bring the holes therein into alinenient with another series of holes in thel box, and the screws then re-inserted.

The following means are provided to sup- `port the sandir-.g drums 60 and lenable them to be raised and lowered to regulate the depth. of the cut. '(Sce Figs. 3 and 4). 6l are pins on opposite sides of the machine frame, there On these pinsA are pivoted the arms 62. Between the ends of the arms are bearings 63 for the drum.

The outer end of one of these arms forms the journal for one end of a shaft 66, while the outer end of the` other arm carries a box 67 in which the other end of shaft 66 is journaled, the shaft projecti 'ig into the box. The shaft has, near each end, an eccentric 68 which engages a block 69 slidable laterally on On the end the shaft 66 which projects into the box 67 is a Worm-wheel 7 6, and extending into the box, and engaging the Worm wheel is 'a worm 77. To raise or lower the drum, thc worm 77 is. turnedI by means of the handle 7 0, which turns the shaft 66. By reason ofthe eccentric bearing of the shaft 66 in the block 69, and the capacity ofthe block to move laterally but not vertically, the shaft 66 is either raised or lowered, thereby lifting the arms 62 and the drum 60 Aand thus regulating the depth ofthe cut. To enable the de th -ofthe cut to be accurately determine a ointer 71 is secured tothe shaft 66 and an indicator 72 is placed on the outside of` the box 67. A

I have not herein claimed the means for lubricating the ways and the inner face of the carrier, nor haveI claimed the means whereby the lagsof the carrier are connected together, as theseform the subject matter of separate divisional applications.

Having-now fully described my invention',

' What'I claim and desireto protect by Letters ondary Patent is:

1. In a sand papering machine, the combination with themain frame, the vertically movable table, theendless carrier and the carrier driving shaft journaled in the table, of a shaft journaled in the mainframe, an intermediate shaft, links respectively on the first two shafts and in which the intermediate shaft is jo'urnaled, and gears connecting the intermediate shaft With each of the other t`Wo shafts.

2; -In a sandpapering machine, the combinationwith the main frame, the verticall movable tablev and the endless carrier, of the 3. In a sand papering machine, the combination with the main' frame and the table movable vertically on the frame, of the endless carrier sup ortedon and movable with the table, a sha t journaled in the table and a brush thereon adapted to engage the carrier, a driving shaft journaled in the main frame, an intermediate shaft, links on the driving shaft and brush shaft respectively in which the intermediate shaft is journaled, and driv ling connections between the intermediate shaft and the other two shafts.

4. In a sand papering machine, the combination Withfthe main frame and the table movable vertically on the frame, of the endless carrierl sup orted on and movable With the table, a `sha t journaled in the table-and a brush thereon adapted to engage the carrier, a driving shaft ournaled in the main frame, and automatica y extensible and contractible driving connections between the driving shaft and the lbrush shaft adapted to maintain the brush in driving relation with its driving shaft notwithstanding adjustments' of the table.

5.111 a sand-papering machine, the combination 'with pivoted arms and the sanding drum supported thereon, of a'boxsu ported on one of the arms, a shaft journaledp box, a block laterally slidable on the main frame, an eccentric on said shaft within nd engaging the block, means to turn said shaft, a pointer on the'shaft, an indicator coperating with said pointer, and means to turn said shaft.l

In testimony of Which invention', I have hereunto set my hand, at Philadelphia, on this 14th day of September, 1906.

JAMES L, PERRY.

Witnesses:

M. M. HAMrLioN, A. M. URIAN.

1n said Y 

